CN102213780A - Bright enhancement film of prism structure - Google Patents
Bright enhancement film of prism structure Download PDFInfo
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- CN102213780A CN102213780A CN2011101960438A CN201110196043A CN102213780A CN 102213780 A CN102213780 A CN 102213780A CN 2011101960438 A CN2011101960438 A CN 2011101960438A CN 201110196043 A CN201110196043 A CN 201110196043A CN 102213780 A CN102213780 A CN 102213780A
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- prism
- enhancement film
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- bright enhancement
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Abstract
The invention discloses a bright enhancement film of a prism structure, relating to the technical field of a bright enhancement film. The prism structure bright enhancement film disclosed by the invention comprises a base material and a prism array, wherein the prism array is arranged above the first optical surface of the base material; the prism array comprises multiple prism units; the bottom surfaces of the prism units are arranged on the first optical surface; the shapes of the prism units which are cut by each plane perpendicular to the length direction of the prism units are triangles; the first vertexes and second vertexes of the triangles are positioned on the bottom surface; and the third vertexes of the triangles are connected to form a curve. The prism structure bright enhancement film disclosed by the invention can flexibly change the angle of the sides of the prism units corresponding to the first optical surface by adjusting the amplitude and frequency of the curve so as to adjust the convergence angle of light rays after passing through the prism array from the first optical surface, thereby conveniently adjusting the visible angle to meet different display requirements.
Description
Technical field
The present invention relates to the bright enhancement film technical field, particularly a kind of prism structure bright enhancement film.
Background technology
At present, bright enhancement film (BEF) is widely used in illuminating module and often uses the energy that bright enhancement film (BEF) increases display brightness and saves the display battery apparatus in the display devices such as the light that light source is sent, especially monitor to be used for converging.The principle of bright enhancement film is by reflection the light outside the directive observer visual angle to be adjusted within the observer visual angle, has so just improved the utilization factor of luminous energy that light source sends.
Common bright enhancement film (BEF) is constituted in order to the prism that converges light by many, and these prisms are arranged according to a direction, form a prism array.The prism of existing bright enhancement film is isosceles right triangle by the cross section, plane perpendicular to the prism length direction, form is single, two sides of each prism are maintained fixed with respect to the angle of bright enhancement film first optical surface, and light can't carry out suitable adjustment to satisfy the different display standards that require through the convergence angle behind this type of bright enhancement film.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is: how a kind of prism structure bright enhancement film is provided, thereby can adjusts visible angle easily to satisfy different display requirements.
(2) technical scheme
For solving the problems of the technologies described above, the invention provides a kind of prism structure bright enhancement film, it is characterized in that, comprising: base material 100 and prism array 200, described prism array 200 is arranged on the top of first optical surface 101 of described base material 100;
Described prism array 200 comprises a plurality of prism unit 201;
The bottom surface 2011 of described prism unit 201 is arranged on described first optical surface 101;
Described prism unit 201 is triangle by 305 the sectional drawing shapes in each plane perpendicular to described prism unit 201 length directions, all on described bottom surface 2011, each described leg-of-mutton the 3rd summit 303 is linked to be a curve 2012 for described leg-of-mutton first summit 301 and second summit 302.
Preferably, described prism unit 201 is arranged according to first direction and is constituted described prism array 200, and described first direction is perpendicular to the length direction of described prism unit 201.
Preferably, each described leg-of-mutton first summit 301 is linked to be the first length limit 2013, and each described leg-of-mutton second summit 302 is linked to be the second length limit 2014, and the described first length limit 2013 is parallel to each other with the described second length limit 2014.
Preferably, described curve 2012 is in a plane parallel with described first optical surface 101.
Preferably, the distance of described the 3rd summit 303 and described bottom surface 2011 is 0.2 times to 1.5 times of distance between described first summit 301 and described second summit 302, and distance is 5 microns to 200 microns between described first summit 301 and described second summit 302.
Preferably, the distance of described the 3rd summit 303 and described bottom surface 2011 is 0.5 times of distance between described first summit 301 and described second summit 302, and distance is 50 microns between described first summit 301 and described second summit 302.
Preferably, the projection of described curve 2012 on described bottom surface 2011 all drops in the scope of described bottom surface 2011.
Preferably, described curve 2012 is sine or cosine curve.
Preferably, be starting point with the end face perpendicular to described prism unit 201 length directions of described prism structure bright enhancement film, amplitude, frequency and the initial phase of the curve 2012 of each described prism unit 201 are all identical.
Preferably, be starting point with the end face perpendicular to described prism unit 201 length directions of described prism structure bright enhancement film, the amplitude of the curve 2012 of adjacent two described prism unit 201 is identical with frequency, the initial phase phase difference of pi.
(3) beneficial effect
Prism structure bright enhancement film of the present invention, by adjusting the amplitude and the frequency of curve, can change the angle of the side of prism unit flexibly with respect to first optical surface, and then adjust light and pass convergence angle behind the prism array, thereby can adjust visible angle easily to satisfy different display requirements via first optical surface.
Description of drawings
Fig. 1 is the front view of the prism structure bright enhancement film of first kind of embodiment of the present invention;
Fig. 2 is the front view of the prism unit of first kind of embodiment of the present invention;
Fig. 3 is the cross sectional representation of the prism unit of first kind of embodiment of the present invention;
Fig. 4 is the section triangle synoptic diagram of first kind of embodiment of the present invention;
Fig. 5 is the side view of the prism unit of first kind of embodiment of the present invention;
Fig. 6 is the vertical view of the prism unit of first kind of embodiment of the present invention;
Fig. 7 is that the prism unit of first kind of embodiment of the present invention is to ray refraction effect synoptic diagram;
Fig. 8 is the front view of the prism structure bright enhancement film of second kind of embodiment of the present invention;
Fig. 9 is the vertical view of adjacent prisms unit combination in the prism structure bright enhancement film of second kind of embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used to illustrate the present invention, but are not used for limiting the scope of the invention.
Embodiment 1
Fig. 1 is the front view of the prism structure bright enhancement film of first kind of embodiment of the present invention.As shown in Figure 1, described prism structure bright enhancement film comprises base material 100 and prism array 200.Described base material 100 comprises first optical flat 101, and with the second relative optical flat 102 of described first optical flat 101.Described prism array 200 is arranged on the top of described first optical flat 101.Described prism array 200 comprises a plurality of prism unit 201, and described prism unit 201 is according to first direction, and promptly direction shown in the 110a is arranged among Fig. 1, the length direction of described first direction and described prism unit 201, and promptly direction shown in the 110b among Fig. 1 is orthogonal.
Fig. 2 is the front view of the prism unit of first kind of embodiment of the present invention, and Fig. 3 is the cross sectional representation of the prism unit of first kind of embodiment of the present invention.As Fig. 2, shown in Figure 3, described prism unit 201 comprises a bottom surface 2011, and described bottom surface 2011 is arranged on described first optical flat 101.And, described prism unit 201 is triangle by 305 the sectional drawing shapes in each plane perpendicular to described prism unit 201 length directions, described leg-of-mutton first summit 301 and second summit 302 are all on described bottom surface 2011, each described leg-of-mutton the 3rd summit 303 is linked to be a curve 2012, each described leg-of-mutton first summit 301 is linked to be the first length limit 2013, each described leg-of-mutton second summit 302 is linked to be the second length limit 2014, and the described first length limit 2013 is parallel to each other with the described second length limit 2014.The line on described first summit 301 and second summit 302 is described leg-of-mutton first limit 304.
Fig. 4 is the section triangle synoptic diagram of first kind of embodiment of the present invention.As shown in Figure 4, the length that defines described first limit 304 is L, and defining described the 3rd summit 303 is H to the distance on described first limit 304, then H is 0.2 times to 1.5 times of L, a kind of preferably scheme is 0.5 times, and the length of L is 5 microns to 200 microns, and a kind of preferably scheme is 50 microns.
Fig. 5 is the side view of the prism unit of first kind of embodiment of the present invention.As shown in Figure 5, described curve 2012 in a plane parallel with described first optical surface 101 or described bottom surface 2011, promptly all described the 3rd summits 303 to described first limit 304 or the distance H of described bottom surface 2011 all equate.
Fig. 6 is the vertical view of the prism unit of first kind of embodiment of the present invention.As shown in Figure 6, the projection of described curve 2012 on described bottom surface 2011 all drops in the scope of described bottom surface 2011.
Described curve 2012 is sine or cosine curve, and is starting point with the end face perpendicular to described prism unit 201 length directions of described prism structure bright enhancement film, and amplitude, frequency and the initial phase of the curve 2012 of each described prism unit 201 are all identical.
Fig. 7 is that the prism unit of first kind of embodiment of the present invention is to ray refraction effect synoptic diagram.As shown in Figure 7, in a period of change of described curve 2012, the angle of the side of described prism unit 201 and described bottom surface 2011 changes within the specific limits continuously, thereby when light when described first optical surface 101 passes described prism unit 201, can obtain the transmitted light of different angles, transmitted light is evenly distributed in certain visual range.
Embodiment 2
Fig. 8 is the front view of the prism structure bright enhancement film of second kind of embodiment of the present invention, and Fig. 9 is the vertical view of adjacent prisms unit combination in the prism structure bright enhancement film of second kind of embodiment of the present invention.As Fig. 8, shown in Figure 9, the difference of the prism structure bright enhancement film of described second kind of embodiment and the prism structure bright enhancement film of described first kind of embodiment only is: the end face perpendicular to described prism unit 401 length directions with described prism structure bright enhancement film is a starting point, the amplitude of the curve 4012 of adjacent two described prism unit 401 is identical with frequency, the initial phase phase difference of pi.
And the like, the amplitude of the curve of adjacent two prism unit and/or frequency also can be different, thereby can further enlarge the otherness of the curve of adjacent two prism unit.
The described prism structure bright enhancement film of the embodiment of the invention, by adjusting the amplitude and the frequency of curve, can change the angle of the side of prism unit flexibly with respect to first optical surface, and then adjust light and pass convergence angle behind the prism array, thereby can adjust visible angle easily to satisfy different display requirements via first optical surface.
Above embodiment only is used to illustrate the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; under the situation that does not break away from the spirit and scope of the present invention; can also make various variations and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (10)
1. a prism structure bright enhancement film is characterized in that, comprising: base material (100) and prism array (200), described prism array (200) are arranged on the top of first optical surface (101) of described base material (100);
Described prism array (200) comprises a plurality of prism unit (201);
The bottom surface (2011) of described prism unit (201) is arranged on described first optical surface (101);
Described prism unit (201) is triangle by each plane (305) institute sectional drawing shape perpendicular to described prism unit (201) length direction, all on described bottom surface (2011), each described leg-of-mutton the 3rd summit (303) is linked to be a curve (2012) for described leg-of-mutton first summit (301) and second summit (302).
2. prism structure bright enhancement film as claimed in claim 1 is characterized in that, described prism unit (201) is arranged according to first direction and constituted described prism array (200), and described first direction is perpendicular to the length direction of described prism unit (201).
3. prism structure bright enhancement film as claimed in claim 1, it is characterized in that, each described leg-of-mutton first summit (301) is linked to be the first length limit (2013), each described leg-of-mutton second summit (302) is linked to be the second length limit (2014), and the described first length limit (2013) is parallel to each other with the described second length limit (2014).
4. prism structure bright enhancement film as claimed in claim 1 is characterized in that, described curve (2012) is in a plane parallel with described first optical surface (101).
5. prism structure bright enhancement film as claimed in claim 1, it is characterized in that, the distance of described the 3rd summit (303) and described bottom surface (2011) is 0.2 times to 1.5 times of distance between described first summit (301) and described second summit (302), and distance is 5 microns to 200 microns between described first summit (301) and described second summit (302).
6. prism structure bright enhancement film as claimed in claim 5, it is characterized in that, the distance of described the 3rd summit (303) and described bottom surface (2011) is 0.5 times of distance between described first summit (301) and described second summit (302), and distance is 50 microns between described first summit (301) and described second summit (302).
7. prism structure bright enhancement film as claimed in claim 1 is characterized in that, the projection of described curve (2012) on described bottom surface (2011) all drops in the scope of described bottom surface (2011).
8. prism structure bright enhancement film as claimed in claim 1 is characterized in that, described curve (2012) is sine or cosine curve.
9. prism structure bright enhancement film as claimed in claim 8, it is characterized in that, the end face perpendicular to described prism unit (201) length direction with described prism structure bright enhancement film is a starting point, and amplitude, frequency and the initial phase of the curve (2012) of each described prism unit (201) are all identical.
10. prism structure bright enhancement film as claimed in claim 8, it is characterized in that, the end face perpendicular to described prism unit (201) length direction with described prism structure bright enhancement film is a starting point, the amplitude of the curve (2012) of adjacent two described prism unit (201) is identical with frequency, the initial phase phase difference of pi.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101960438A CN102213780A (en) | 2011-07-13 | 2011-07-13 | Bright enhancement film of prism structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101960438A CN102213780A (en) | 2011-07-13 | 2011-07-13 | Bright enhancement film of prism structure |
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| Publication Number | Publication Date |
|---|---|
| CN102213780A true CN102213780A (en) | 2011-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101960438A Pending CN102213780A (en) | 2011-07-13 | 2011-07-13 | Bright enhancement film of prism structure |
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| CN (1) | CN102213780A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102346268A (en) * | 2011-10-14 | 2012-02-08 | 北京康得新复合材料股份有限公司 | Brightness enhancement film |
| CN103091741A (en) * | 2012-12-21 | 2013-05-08 | 张家港康得新光电材料有限公司 | Light enhancement film and display device using the same |
| CN103777259A (en) * | 2012-10-22 | 2014-05-07 | 嘉威光电股份有限公司 | Optical diaphragm suitable for edge-type backlight module |
| CN104991297A (en) * | 2015-07-16 | 2015-10-21 | 宁波东旭成新材料科技有限公司 | Self-repairing brightness enhancement film |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1482502A (en) * | 2002-09-14 | 2004-03-17 | ���ǵ�����ʽ���� | Liquid crystal display device |
| WO2005003851A1 (en) * | 2003-07-01 | 2005-01-13 | Lgs Corporation | Prism sheet of back light unit for lcd |
| CN1710478A (en) * | 2005-07-05 | 2005-12-21 | 友达光电股份有限公司 | Light-guide plate with bent groove |
-
2011
- 2011-07-13 CN CN2011101960438A patent/CN102213780A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1482502A (en) * | 2002-09-14 | 2004-03-17 | ���ǵ�����ʽ���� | Liquid crystal display device |
| WO2005003851A1 (en) * | 2003-07-01 | 2005-01-13 | Lgs Corporation | Prism sheet of back light unit for lcd |
| CN1710478A (en) * | 2005-07-05 | 2005-12-21 | 友达光电股份有限公司 | Light-guide plate with bent groove |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102346268A (en) * | 2011-10-14 | 2012-02-08 | 北京康得新复合材料股份有限公司 | Brightness enhancement film |
| CN102346268B (en) * | 2011-10-14 | 2014-09-24 | 北京康得新复合材料股份有限公司 | Brightness enhancement film |
| CN103777259A (en) * | 2012-10-22 | 2014-05-07 | 嘉威光电股份有限公司 | Optical diaphragm suitable for edge-type backlight module |
| CN103091741A (en) * | 2012-12-21 | 2013-05-08 | 张家港康得新光电材料有限公司 | Light enhancement film and display device using the same |
| CN104991297A (en) * | 2015-07-16 | 2015-10-21 | 宁波东旭成新材料科技有限公司 | Self-repairing brightness enhancement film |
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Application publication date: 20111012 |
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